Neuronal membrane-associated signaling and synaptic proteins

Neuronal membrane-associated signaling and synaptic proteins refers to a broad and heterogeneous collection of proteins located at the neuronal plasma membrane, particularly concentrated within the synaptic cleft and the postsynaptic density (PSD). This category includes essential molecular components such as ionotropic and metabotropic neurotransmitter receptors, voltage-gated ion channels, cell adhesion molecules, and intracellular scaffolding proteins (Sheng & Kim, 2011, Cold Spring Harb Perspect Biol). These proteins are fundamental to the process of synaptic transmission, enabling neurons to communicate and undergo the plastic changes necessary for learning and memory (Bayer & Schulman, 2019, Nat Rev Neurosci). Dysregulation or loss of these proteins is a central feature of "synaptopathies," which include neurodegenerative conditions like Alzheimer's disease and psychiatric disorders such as schizophrenia and autism (Lepeta et al., 2016, J Neurochem). While many individual members of this group, such as the NMDA receptor or acetylcholinesterase, are successful therapeutic targets for drugs like memantine and donepezil, the term itself describes a functional proteome rather than a single target (Bayés et al., 2011, Nat Neurosci). Consequently, targeting this broad class requires high specificity to avoid disrupting the delicate balance of global neuronal signaling.

Other names

Synaptic proteomePostsynaptic density proteinsNeuronal membrane proteinsSynaptic signaling complex

Modulation of synaptic transmission through various mechanisms including receptor antagonism, ion channel block, and enzyme inhibition.